Pemanfaatan sari terong asam (Solanum ferox L.) pada pembuatan minuman fermentasi dengan bakteri asam laktat = Utilization of terong asam juice (Solanum ferox L.) in the making of fermented drink by lactic acid bacteria

Viantono, Alfindra Ersanko (2016) Pemanfaatan sari terong asam (Solanum ferox L.) pada pembuatan minuman fermentasi dengan bakteri asam laktat = Utilization of terong asam juice (Solanum ferox L.) in the making of fermented drink by lactic acid bacteria. Bachelor thesis, Universitas Pelita Harapan.

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Abstract

Terong asam (Solanum ferox L.) has been reported to contain bioactive compounds and functional nutrients such as tocopherol, vitamin C, and antioxidants. This research was aimed to produce fermented drink made from the juice of terong asam. The fermented drink was processed by ratio of water with fruits and addition of skim milk and incubated with Lactobacillus casei. The combination of water and fruit juice were mixed with different ratios of 1:5, 1:4, and 1:3 (w/v).Skim milk was mixed with different concentrations of 0, 2.5, and 5% (w/v) was fermented for 24 hours. Physiochemical properties of the fermented drink includes pH, total titratable acidity, total lactic acid bacteria, total phenolic compound, total flavonoid compound, and antioxidant activity. This study showed that the ratio water: fruits 1:3 and 5% skim consider as the best with total titratable acidity of 0.60%, pH 3.73, total phenolic compound of 15.68 mgGAE/mL, total flavonoid compound of 4.93 mgQE/mL, and IC50 294.47 mg/L. The growth of Lactobacillus casei also was increase to 9.44 log CFU/mL. Storage of fermented terong asam juice drink at 7°C for 4 weeks could stabilize the quality of this drink with total lactic acid bacteria still was 7 log CFU/mL and still accepted by the standard of fermented drink.

Item Type: Thesis (Bachelor)
Creators:
CreatorsNIMEmail
Viantono, Alfindra ErsankoUNSPECIFIEDUNSPECIFIED
Contributors:
ContributionContributorsNIDN/NIDKEmail
Thesis advisorAnjaya, NurwitriUNSPECIFIEDUNSPECIFIED
Thesis advisorSiregar, Tagor MarsillamUNSPECIFIEDUNSPECIFIED
Uncontrolled Keywords: fermented terong asam drink; Lactobacilus casei; ratio; skim milk; storage
Subjects: T Technology > TP Chemical technology > TP368-456 Food processing and manufacture
Divisions: University Subject > Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology
Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology
Depositing User: Mrs Veronica Fitri Astuti
Date Deposited: 16 Oct 2018 07:47
Last Modified: 16 Dec 2019 03:36
URI: http://repository.uph.edu/id/eprint/1503

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